The Serbian-born pro took the tennis world by storm in 2010, shocking American favorite Andy Roddick in the second round of the US Open, and then winning the clinching point that propelled his native country into the finals of the Davis Cup for the first time. He made his ATP debut in 2003 and finished in the Top 50 for the first time in 2008. He’s married to Serbian television host Biljana Sesevic and has been known to entertain fellow players with his “DJ Tipsy” house music. Interesting factoid: He has the quote “Beauty Will Save the World” tattooed on his arm.